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It is used to seal the valve guide rod of the engine, which can prevent the oil from entering the combustion ch...
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It is installed in the front and rear end of the engine crankshaft to prevent the leakage of lubricating oil in...
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Prevent the leakage of lubricating oil inside the engine body and the entry of water, dust and other impurities...
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It is installed on the driving bevel gear to prevent the leakage of gear oil inside the main reducer housing an...